Setting And Adjustments - Sharp AR-M550N Service Manual

: Feb. 9 2004
1

[7] SETTING AND ADJUSTMENTS

Each adjustment item in the adjustment item list is associated with a specific JOB number. Perform the adjustment procedures in the sequence of Job
numbers from the smallest to the greatest.
However, there is no need to perform all the adjustment items. Perform only the necessary adjustments according to the need.
Unnecessary adjustments can be omitted. Even in this case, however, the sequence from the smallest to the greatest JOB number must be observed.
If the above precaution should be neglected, the adjustment would not complete normally or trouble may occur.
Job No
ADJ 1 Adjusting high voltage values
1
ADJ 2 Adjusting the developing unit
ADJ 3 Adjusting image distortions
ADJ 4 Adjusting the SPF parallelism
ADJ 5 Adjusting the image focus
ADJ 6 Adjusting the image magnification
1
ADJ7 Adjusting the image off-center
ADJ 8 Adjusting the image position, image loss, and
void area
ADJ 9 Adjusting the copied image quality
ADJ 10 Adjusting the print quality in fax mode
1
Adjustment item list
ADJ 1A Adjust the main charger grid voltage
ADJ 1B Adjust the developing bias voltage
ADJ 1C Adjust the transfer current
ADJ 2A Adjust the developing doctor gap
ADJ 2B Adjust the developing roller main pole
ADJ 3A Adjust print image distortions (LSU parallelism
adjustment)
ADJ 3B Adjust the scanner (reading) unit parallelism
ADJ 3C Adjust scanned image distortions in the sub-scanning
direction
ADJ 3D Adjust scanned image distortions in the main scanning
direction - 1
ADJ 3E Adjust scanned image distortions in the main scanning
direction - 2
ADJ 4A Adjust SPF levelness
ADJ 4B Adjust SPF skews
ADJ 5A Adjust the image focus in original table mode and SPF
front-face mode (CCD)
ADJ 5B Adjust the image focus in SPF back-face mode (CIS)
ADJ 6A Adjust the image magnification in the main scanning
direction in original table mode (CCD)
ADJ 6B Adjust the image magnification in the sub-scanning
direction in original table mode (CCD)
ADJ 6C Adjust the image magnification in the main scanning
direction in SPF front-face mode (CCD)
ADJ 6D Adjust the image magnification in the main scanning
direction in SPF back-face mode (CIS)
ADJ 6E Adjust the image magnification in the sub-scanning
direction in SPF mode
ADJ 7A Adjust the print image off-center (print engine section)
ADJ 7B Adjust the scanned image off-center in original table
mode (scan section)
ADJ 7C Adjust the scanned image off-center in SPF front-face
mode (scan section)
ADJ 7D Adjust the scanned image off-center in SPF back-face
mode (scan section)
ADJ 8A Adjust copied image loss/void area in original table mode
ADJ 8B Adjust the original scan start position (adjust the scanner
read position in SPF-mode front face scan)
ADJ 8C Adjust the copied image loss/void area in SPF mode
ADJ 8D Adjust the image loss in scanner mode
ADJ 8E Adjust the image loss for images sent in fax mode
ADJ 9A Adjust the binary mode copy density for all modes at once 46-2
ADJ 9B Adjust the copy density in text binary mode
ADJ 9C Adjust the copy density in text/photo binary mode
ADJ 9D Adjust the copy density in photo binary mode
ADJ 9E Adjust the copied image gamma in copy mode
ADJ 9F Adjust the copied image sharpness
ADJ 10A Adjust the fax mode print density for all modes at once
ADJ 10B Adjust the fax mode print density in standard mode
ADJ 10C Adjust the fax mode print density in small-character mode
ADJ 10D Adjust the fax mode print density in fine mode
ADJ 10E Adjust the fax mode print density in super fine mode
ADJ 10F Adjust the fax mode print density in 600dpi mode
AR-M550/M620/M700 SETTING AND ADJUSTMENTS 7 - 1
Simulation
8-2
8-1
8-6, 8-17, 8-18
64-1
64-1
48-1
48-1
48-1
48-1
48-1
48-1, 48-5
50-5 (50-10)
50-12
50-12
50-12
50-1
53-8
50-6
50-27
50-27
46-9, 10, 11
46-18
46-31
46-12
46-13, 46-14,
46-15, 46-16,
46-45